Resources Contact Us Home
Method of synthesizing aluminophosphate and silicoaluminophosphate molecular sieves

Image Number 3 for United States Patent #7842640.

In a method of synthesizing an aluminophosphate or silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by mixing a plurality of starting materials including at least a source of water, a source of phosphorus, a source of aluminum, optionally, a source of silicon and, and at least one organic directing agent for directing the formation of said molecular sieve. The starting materials are maintained at a temperature between C. and C., preferably between C. and C., during the mixing and until preparation of the starting mixture is complete, whereafter the synthesis mixture is heated to a crystallization temperature between about C. and about C. until crystals of the molecular sieve are produced. When crystallization is complete, the molecular sieve is recovered.

  Recently Added Patents
Methods circuits apparatuses and systems for facilitating access to online content
Apparatus for performing timer management regarding a system timer scheduler service, and associated method
Liquid crystal display device
Fine grain voltage scaling of back biasing
Semiconductor memory device and manufacturing method thereof
Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding
Process cartridge and electrophotographic image forming apparatus
  Randomly Featured Patents
Latex compositions comprising loadable polymeric particles
Method for the production of a suds-stabilized silicone-containing detergent
Inbred maize variety PHEWB
Microwave oven with circularly polarized microwave feed structure
Refresh system for digital signals with refresh cycle synchronization
Contact element arrangement for an electrical switching device, especially for a contactor
Communication circuit protector
Press-contact type connector
Data converter, information recorder, and error detector
Loose-leaf binder and cover